Home / 49,686.21-74,447.41-28,643.99

Finding the Fourth Proportional to 49,686.21, 74,447.41 and 28,643.99

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Solution

The fourth proportional to 49,686.21, 74,447.41 and 28,643.99 is: 42,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,686.21 : 74,447.41 = 28,643.99 : x
  2. Step 2: Convert to fraction form
    49,686.21/74,447.41 = 28,643.99/x
  3. Step 3: Cross multiply
    49,686.21x = 74,447.41 × 28,643.99
  4. Step 4: Simplify right side
    49,686.21x = 2,132,470,867.57
  5. Step 5: Solve for x
    x = 2,132,470,867.57/49,686.21
  6. Step 6: Final answer
    x = 42,918.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.